CAT1027ZI-25-GT3

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PMIC, or Power Management Integrated Circuit, serves to regulate power supply and monitor the performance of electronic circuits, protecting the system and its components from overheating and voltage discrepancies. When it comes to one particular product, like the CAT1027ZI-25-GT3, it is important to consider the applications and working principles behind it.

The CAT1027ZI-25-GT3 from ON Semiconductor is a low-cost, low-power microprocessor supervisor IC that has 2 push-pull open drains for reset and manual reset applications. It works to guarantee system safety and performance in microprocessor-based systems, and is suitable for longer battery life applications.

In a typical system-on-chip (SoC) application, the CAT1027ZI-25-GT3 monitors the operation of a single or dual power supply design. The IC has an active low reset output and an additional manual reset output, which is held statically low by default.

The IC’s primary purpose is to ensure that the supply voltage remains within safe limits. As such, it constantly checks the output of the power supply, and if the voltage drops below the expected range, it sends a reset signal to the microprocessor, which then halts operation. This prevents the system from overheating or experiencing any other problem caused by a failure of the power supply.

The CAT1027ZI-25-GT3 also monitors the power-good (PG) signal from the system. If it detects that the power supply is not delivering an adequate amount of current, it will trip and send out a reset signal.

The supervisor features a power-on reset (POR) generator, which can be used to provide reset signals after a power-fail event or various reset sources, such as cold power-on, manual reset, watchdog timer, and thermal protection.

The CAT1027ZI-25-GT3 also incorporates an on-chip temperature-dependent start circuit, which helps to eliminate unwanted noise during power-on.

Moreover, an active low mode control pin is included to select the output logic on manual reset, power-on reset, and push-pull outputs. The supervisor also has an under-voltage lockout (UVLO) protection circuitry, which prevents the system from starting-up with a voltage that is too low.

The CAT1027ZI-25-GT3 also has an over-voltage protection (OVP) feature, which prevents unexpected system reset signals from occurring if the power supply voltage rises beyond the preset value.

The CAT1027ZI-25-GT3 is ideal for use in applications where cost and power consumption are at a premium. It is available in various package options, including 8-lead PDIP, 8-lead SOIC and 8-lead TSSOP, and comes in a wide temperature range from -40° to +85°C, making it suitable for a variety of applications.

In conclusion, the CAT1027ZI-25-GT3 is an effective and reliable microprocessor supervisor IC, designed to ensure safe and effective operation in microprocessor-based systems. It offers superior performance due to its wide temperature range, UVLO and OVP protection, active low mode control and POR generator.

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